What is the energy stored in the magnetic field

Reference no: EM13540250

An inductor used in a dc power supply has an inductance of 12.0H and a resistance of 170 OMEGA . It carries a current of 0.300 A.

What is the energy stored in the magnetic field?
U=________________ J

At what rate is thermal energy developed in the inductor?
P=________________ W

Does your answer to part (b) mean that the magnetic-field energy is decreasing with time?
Explain your answer.

Reference no: EM13540250

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